:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--logic-blue: #00f0ff;--logic-blue-glow: rgba(0, 240, 255, .4);--logic-dark: #0a0a0f;--logic-surface: #14141e;--logic-surface-lighter: #1e1e2d;--text-primary: #e0e0e0;--text-secondary: #8c8c9a;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text-primary);background-color:var(--logic-dark)}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;justify-content:center;background-color:var(--logic-dark);position:relative}body:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(0,240,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(0,240,255,.08) 1px,transparent 1px);background-size:40px 40px;background-position:0 0;animation:gridFlow 20s linear infinite;z-index:-2}body:after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20px 20px,rgba(0,240,255,.3) 2px,transparent 2px);background-size:120px 120px;animation:gridFlow 20s linear infinite;z-index:-1}@keyframes gridFlow{0%{background-position:0 0}to{background-position:120px 120px}}#root{width:100%;max-width:480px;height:100vh;display:flex;flex-direction:column}.app-container{display:flex;flex-direction:column;height:100%;background-color:#0a0a0ff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-left:1px solid var(--logic-blue-glow);border-right:1px solid var(--logic-blue-glow);position:relative;overflow:hidden;box-shadow:0 0 40px #00f0ff1a}.app-container:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--logic-blue);box-shadow:0 0 15px var(--logic-blue),0 0 30px var(--logic-blue)}.header{padding:1.5rem;text-align:center;border-bottom:1px solid rgba(0,240,255,.2)}.header-logo{height:56px;width:auto;flex-shrink:0;mix-blend-mode:screen}.logo-integrated{height:80px;margin-right:0;margin-bottom:-12px;position:relative;z-index:2}.title{font-size:2rem;font-weight:800;margin:0;color:#fff;text-transform:uppercase;letter-spacing:2px;text-shadow:0 0 10px var(--logic-blue-glow)}.tagline{font-size:.85rem;color:var(--logic-blue);margin:0;text-transform:uppercase;letter-spacing:1px}.nav-tabs{display:flex;background-color:var(--logic-surface);border-bottom:1px solid rgba(0,240,255,.2)}.nav-tab{flex:1;background:none;border:none;color:var(--text-secondary);padding:1rem 0;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative}.nav-tab.active{color:var(--logic-blue);text-shadow:0 0 8px var(--logic-blue-glow)}.nav-tab.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--logic-blue);box-shadow:0 -2px 10px var(--logic-blue)}.history-tab{flex:0 0 50px!important;color:var(--logic-blue)!important}.history-tab.active{background:#00f0ff1a!important}.content{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.card{background-color:var(--logic-surface);border:1px solid rgba(0,240,255,.15);border-radius:12px;padding:.85rem;position:relative;overflow:hidden;transition:all .3s ease}.card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(0,240,255,.05) 0%,transparent 100%),linear-gradient(90deg,var(--logic-blue-glow) 1px,transparent 1px) 0 0 / 40px 40px,linear-gradient(0deg,var(--logic-blue-glow) 1px,transparent 1px) 0 0 / 40px 40px;pointer-events:none;opacity:.15}.about-text{font-size:.95rem;line-height:1.6;color:var(--text-primary);margin-bottom:2rem;text-align:justify}.signature{font-family:Dancing Script,cursive;font-size:2.5rem;color:var(--logic-blue);text-shadow:0 0 10px var(--logic-blue-glow);margin:1rem 0 .25rem}.signature-title{font-size:.8rem;color:var(--text-secondary);font-family:Inter,sans-serif;text-transform:uppercase;letter-spacing:1px}.result-display{display:flex;justify-content:space-between;align-items:center;background-color:var(--logic-dark);border:1px solid var(--logic-blue-glow);border-radius:8px;padding:1.25rem;margin-bottom:1rem;box-shadow:inset 0 0 15px #00000080}.result-value{font-size:2.5rem;font-weight:700;color:var(--logic-blue);text-shadow:0 0 10px var(--logic-blue-glow);font-family:monospace}.result-label{color:var(--text-secondary);font-size:.9rem;margin-top:.5rem}.icon-button{background:transparent;border:1px solid rgba(0,240,255,.3);color:var(--logic-blue);width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.icon-button:hover,.icon-button:active{background-color:#00f0ff1a;box-shadow:0 0 10px var(--logic-blue-glow)}.pad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}.travel-pad{grid-template-columns:repeat(4,1fr);gap:.4rem}.travel-pad .pad-btn{min-height:44px;padding:.7rem 0;font-size:.95rem}.kitchen-pad{grid-template-columns:repeat(4,1fr)}.numbers-row{grid-column:1 / -1;display:flex;gap:.4rem;justify-content:space-between;margin-bottom:.5rem;overflow-x:auto;padding-bottom:2px}.number-btn{flex:1;min-width:32px;min-height:44px!important;padding:.5rem 0!important;font-size:1.1rem!important;background-color:var(--logic-surface)!important;border:1px solid var(--logic-blue-glow)!important;box-shadow:0 0 10px #00f0ff66;color:var(--logic-blue)!important}.number-btn:active{background-color:var(--logic-blue-glow)!important;box-shadow:0 0 15px var(--logic-blue-glow)!important}.pad-btn{background-color:var(--logic-surface-lighter);border:1px solid rgba(255,255,255,.05);color:var(--text-primary);font-size:1.15rem;font-weight:600;padding:1rem 0;border-radius:8px;cursor:pointer;transition:all .1s;display:flex;align-items:center;justify-content:center;min-height:50px}.pad-btn:active{transform:scale(.95);background-color:var(--logic-blue-glow);color:#fff;border-color:var(--logic-blue)}.pad-btn.primary{background-color:#00f0ff1a;border-color:#00f0ff4d;color:var(--logic-blue)}.pad-btn.primary:active{background-color:var(--logic-blue);color:var(--logic-dark)}.pad-btn.operator{background-color:#00f0ff14;border-color:#00f0ff40;color:var(--logic-blue);font-size:1.4rem}.pad-btn.operator:active,.pad-btn.operator.active{background-color:var(--logic-blue);color:var(--logic-dark);border-color:var(--logic-blue);box-shadow:0 0 12px var(--logic-blue-glow)}.pad-btn.backspace{background-color:#00f0ff0d;border-color:#00f0ff26;color:var(--logic-blue);font-size:1.3rem;opacity:.7}.pad-btn.backspace:active{background-color:#00f0ff33;color:var(--logic-blue);opacity:1}.pad-btn.danger{background-color:#00f0ff0d;border-color:#00f0ff33;color:#00f0ff99}.pad-btn.danger:active{background-color:#00f0ff26;color:var(--logic-blue);border-color:var(--logic-blue)}.pad-btn.span-2{grid-column:span 2}.toggle-group{display:flex;background-color:var(--logic-dark);border-radius:8px;padding:.25rem;border:1px solid rgba(255,255,255,.1);margin-bottom:1rem}.toggle-btn{flex:1;background:transparent;border:none;color:var(--text-secondary);padding:.75rem 0;font-weight:600;border-radius:6px;cursor:pointer;transition:all .2s}.toggle-btn.active{background-color:#00f0ff26;color:var(--logic-blue);box-shadow:0 0 10px #00f0ff1a}.converter-row{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.input-group{flex:1 1 0;min-width:0;display:flex;flex-direction:column}input{width:100%;box-sizing:border-box;background-color:var(--logic-dark);border:1px solid rgba(255,255,255,.1);color:var(--text-primary);font-size:1.15rem;padding:1rem;border-radius:8px;text-align:right;font-family:monospace}input:focus{outline:none;border-color:var(--logic-blue);box-shadow:0 0 8px var(--logic-blue-glow)}.travel-input.active{border-color:var(--logic-blue);box-shadow:0 0 10px var(--logic-blue-glow);background-color:#00f0ff0d}.input-label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;margin-bottom:.25rem;font-weight:600}.swap-btn{background:transparent;border:none;color:var(--logic-blue);cursor:pointer;padding:.25rem;opacity:.7}.swap-btn:hover{opacity:1;transform:rotate(180deg);transition:all .3s}.history-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid rgba(255,255,255,.05)}.history-item:last-child{border-bottom:none}.history-equation{color:var(--text-primary);font-weight:500}.history-result{color:var(--logic-blue);font-weight:700;font-family:monospace}.smart-suggestion{display:inline-block;background-color:#00f0ff1a;color:var(--logic-blue);padding:.5rem 1rem;border-radius:20px;font-size:.85rem;font-weight:600;margin-top:1rem;border:1px solid rgba(0,240,255,.2)}.kitchen-expression{font-family:monospace;font-size:1.15rem;color:var(--text-secondary);background-color:var(--logic-dark);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:.75rem 1.25rem;margin-bottom:.75rem;min-height:3.2rem;text-align:right;letter-spacing:.5px;overflow-x:auto;white-space:nowrap;display:flex;align-items:center;justify-content:flex-end;box-sizing:border-box}.kitchen-expression-placeholder{color:#8c8c9a66;font-family:Inter,sans-serif;font-size:.85rem;font-style:italic;letter-spacing:0}.modal-overlay{position:absolute;inset:0;background-color:#0a0a0fd9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;padding:1.5rem}.about-btn{animation:pulse-glow 3s infinite;box-shadow:0 0 10px #00f0ff33;border:1px solid rgba(0,240,255,.3)!important;color:var(--logic-blue);background:#00f0ff0d}@keyframes pulse-glow{0%{box-shadow:0 0 5px #00f0ff33}50%{box-shadow:0 0 15px #00f0ff99,inset 0 0 10px #00f0ff4d}to{box-shadow:0 0 5px #00f0ff33}}.modal-content{position:relative;max-width:100%;width:100%;box-shadow:0 0 30px #00f0ff26!important;animation:modalFadeIn .3s cubic-bezier(.16,1,.3,1);box-sizing:border-box}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.close-btn{position:absolute;top:1rem;right:1rem;width:32px;height:32px;padding:0;z-index:10}.about-layout{display:flex;gap:1.25rem;align-items:flex-start;margin-bottom:1rem}.profile-image-container{flex-shrink:0;width:90px;height:90px;border-radius:50%;border:2px solid var(--logic-blue);box-shadow:0 0 15px var(--logic-blue-glow);overflow:hidden;background:var(--logic-dark);display:flex;align-items:center;justify-content:center}.profile-image{width:100%;height:100%;object-fit:cover}.profile-placeholder{flex-shrink:0;width:90px;height:90px;background:var(--logic-dark);border:2px solid var(--logic-blue-glow);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 15px #00f0ff1a}@media(max-width:400px){.about-layout{flex-direction:column;align-items:center;text-align:center}}